Lenses for Wedding Photography
The important lenses to have are the zooms. These allow the most flexibility and allow you to cover a broad range of focal lengths with the fewest number of lenses. Look for the F/2.8 zooms that each manufacturer makes. They are all excellent lenses, tack sharp, fast to focus, quiet, and simply put, deliver stunning results. They are pricey lenses, but are worth the cost.
Ultra-Wide Angle Zoom - A 16-35mm F/2.8 full-frame equivalent or 11-16mm F/2.8 on crop frame camera will allow you take cool wide angle shots encompassing a large number of people and field of view. It's perfect for receptions and candid shots.
Standard Zoom - A 24-70mm F/2.8 full-frame equivalent or 17-50mm F/2.8 on a crop frame camera will be one of your main lenses (the telephoto being the other) that will see the most use. This lens will work the entire day for a variety of shots near and far.
Telephoto Zoom - A 70-200mm F/2.8 is a must have for weddings. It is especially good for getting closeups during the ceremony at the church without being disruptive or distracting. You can stand at a distance and snap photos of the bride and groom as they exchange their vows. This lens also has a shallower depth of field (DOF) allowing you to separate your subject(s) from their background. Use this in low light where more reach is necessary.
Fast Primes - These are optional but can produce stunning results. A good prime lineup to have is a 35mm, 50mm, 85mm, and 135mm. They come in a variety of apertures ranging from the most expensive, F/1.2, to the more budget-friendly f/2. These are especially helpful in dim churches where flash photography is not allowed.